public class SybaseAnywhereMaxValueIncrementer extends SybaseMaxValueIncrementer
DataFieldMaxValueIncrementer
that increments the maximum value of a given Sybase table
with the equivalent of an auto-increment column. Note: If you use this class, your table key
column should NOT be defined as an IDENTITY column, as the sequence table does the job.
This class is intended to be used with Sybase Anywhere.
The sequence is kept in a table. There should be one sequence table per table that needs an auto-generated key.
Example:
create table tab (id int not null primary key, text varchar(100)) create table tab_sequence (id bigint identity) insert into tab_sequence values(DEFAULT)If "cacheSize" is set, the intermediate values are served without querying the database. If the server or your application is stopped or crashes or a transaction is rolled back, the unused values will never be served. The maximum hole size in numbering is consequently the value of cacheSize. HINT: Since Sybase Anywhere supports the JDBC 3.0
getGeneratedKeys
method, it is recommended to use IDENTITY columns directly in the tables and then
using a SimpleJdbcInsert
or utilizing
a KeyHolder
when calling the with the
update(PreparedStatementCreator psc, KeyHolder generatedKeyHolder)
method of the JdbcTemplate
.
Thanks to Tarald Saxi Stormark for the suggestion!
paddingLength
Constructor and Description |
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SybaseAnywhereMaxValueIncrementer()
Default constructor for bean property style usage.
|
SybaseAnywhereMaxValueIncrementer(DataSource dataSource,
String incrementerName,
String columnName)
Convenience constructor.
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Modifier and Type | Method and Description |
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protected String |
getIncrementStatement()
Statement to use to increment the "sequence" value.
|
getIdentityStatement
getDeleteStatement, getNextKey, isDeleteSpecificValues, setDeleteSpecificValues
afterPropertiesSet, getCacheSize, getColumnName, setCacheSize, setColumnName
getDataSource, getIncrementerName, getPaddingLength, nextIntValue, nextLongValue, nextStringValue, setDataSource, setIncrementerName, setPaddingLength
public SybaseAnywhereMaxValueIncrementer()
public SybaseAnywhereMaxValueIncrementer(DataSource dataSource, String incrementerName, String columnName)
dataSource
- the DataSource to useincrementerName
- the name of the sequence/table to usecolumnName
- the name of the column in the sequence table to useprotected String getIncrementStatement()
AbstractIdentityColumnMaxValueIncrementer
getIncrementStatement
in class SybaseMaxValueIncrementer